Costco Wholesale Corporation (COST) vs T-Mobile US, Inc. (TMUS)
A side-by-side comparison of Costco Wholesale Corporation and T-Mobile US, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 28, 2026. Differences are shown without an overall score or investment verdict.
Different business models: COST is classified in Consumer Defensive; TMUS is classified in Communication Services. Margin, capital intensity, and valuation differences should be interpreted in that sector context.
COST
Costco Wholesale Corporation
$966.58Consumer DefensiveDelayed quote: Jul 28, 2026, 4:00 PM EDT
TMUS
T-Mobile US, Inc.
$182.39Communication ServicesDelayed quote: Jul 28, 2026, 4:00 PM EDT
Total return — COST vs TMUS
growth of $100 · dividends reinvested · last 19yCOST +2003.8%TMUS +225.0%COST compounded faster
Log scale — wide-divergence pair
COST TMUS
COST vs TMUS: by the numbers
- •COST is the larger company ($428.66B vs $195.64B market cap).
- •TMUS trades at the lower trailing earnings multiple (18.56 vs 47.87 P/E), one valuation lens rather than an overall verdict.
- •TMUS converts more revenue to profit (11.45% vs 3.01% net margin).
- •COST grew revenue faster over the past five years (9.48% vs 3.05% CAGR).
- •TMUS pays the higher dividend yield (2.22% vs 0.56%).
Metrics side by side
Valuation
| Metric | COST | TMUS |
|---|---|---|
| P/E ratio | 47.87 | 18.56 |
| Forward P/E | 46.33 | 16.30 |
| P/S ratio | 1.44 | 2.08 |
| P/B ratio | 12.62 | 3.41 |
| PEG ratio | 5.23 | 40.40 |
| EV / EBITDA | 29.89 | 10.01 |
| FCF yield | 2.08% | 8.25% |
Profitability
| Metric | COST | TMUS |
|---|---|---|
| Gross margin | 12.88% | 54.46% |
| Operating margin | 3.82% | 20.30% |
| Net margin | 3.01% | 11.45% |
| ROE | 26.38% | 18.77% |
| ROIC | 19.44% | 7.04% |
Dividends
| Metric | COST | TMUS |
|---|---|---|
| Dividend yield | 0.56% | 2.22% |
| Payout ratio | 29.44% | 40.41% |
Growth (annualized)
| Metric | COST | TMUS |
|---|---|---|
| Revenue CAGR (5Y) | 9.48% | 3.05% |
| EPS CAGR (5Y) | 15.04% | 29.48% |
| FCF CAGR (5Y) | 4.95% | 41.38% |
| Total return CAGR (5Y) | 18.31% | 5.83% |
Frequently asked
- Which has the lower trailing P/E, COST or TMUS?
- TMUS has the lower trailing P/E: COST trades at 47.87 and TMUS at 18.56. P/E is one valuation measure and does not by itself establish which business is cheaper.
- Which has grown faster, COST or TMUS?
- Over the past five years, COST grew revenue faster — COST at a 9.48% CAGR versus TMUS at 3.05%.
- Does COST or TMUS pay a bigger dividend?
- COST yields 0.56% and TMUS yields 2.22% based on trailing dividends and the latest price.
- Is COST or TMUS more profitable?
- TMUS runs the higher net margin — COST at 3.01% versus TMUS at 11.45%.
- How have COST and TMUS total returns compared?
- Over the past 10 years, COST delivered 20.06% and TMUS delivered 15.35% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Costco Wholesale P/E ratioT-Mobile US P/E ratioCostco Wholesale dividend yieldT-Mobile US dividend yieldCostco Wholesale ROET-Mobile US ROECostco Wholesale operating marginT-Mobile US operating marginCostco Wholesale revenue growthT-Mobile US revenue growthCostco Wholesale free cash flowT-Mobile US free cash flow
Costco Wholesale & T-Mobile US appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified July 28, 2026.